sprockets-rails

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because Sprockets throws an error when "manifest" is missing, it's impossible to compile assets, and then delete the source folder. this is a really bad direction for people who use services like heroku, where speed is dependent on post-compiled app size. I shouldn't need to keep my source files after they've been compiled, just to start my server

If you want to remove the assets folder you need to find and remove any config options that reference assets (example from development.rb: config.assets.quiet = true), and then in application.rb, instead of requiring all of the rails libraries with require "rails/all", replace it with something like the following:

%w(
  active_record/railtie
  active_storage/engine
  action_controller/railtie
  action_view/railtie
  action_mailer/railtie
  active_job/railtie
  action_cable/engine
  action_mailbox/engine
  action_text/engine
  rails/test_unit/railtie
- sprockets/railtie
).each do |railtie|
  begin
    require railtie
  rescue LoadError
  end
end

See https://github.com/rails/rails/blob/master/railties/lib/rails/all.rb as to where I am pulling this. Basically we just no longer want to require sprockets.

Hopefully this made some sense. I have removed app/assets from several projects by doing this.

@andrewmcodes the goal isn't to remove sprockets, it's to remove the unneeded source files in production